Bedienungsanleitung Extraflame Duchessa Idro Steel (Seite 12 von 32) (Englisch)

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12 ENGLISH

PELLETS AND FEEDING

Pellets are made by applying high pressure to sawdust, or wood waste products (not containing paint) from sawmills, carpentry and other

activities related to processing and working with wood.

Given that it does not use any glue to hold it together this type of fuel is completely environmentally friendly. In fact the compactness of the

pellets over time is guaranteed by a natural substance found in the wood itself: wood coal. In addition to being an environmentally friendly

fuel in that it pushes wood residues to the limits pellets also have technical advantages.

While wood has a caloric value of 4.4kWh/kg. (with 15% humidity after around 18 months of seasoning) the caloric value of pellets is 5 kWh/

kg.

Pellet density is 650kg/m3 and the water content is equal to 8% of its weight. For this reason they do not require seasoning in order to arrive

at a suciently adequate degree of heat yield.

THE USE OF EXPIRED PELLETS OR ANY OTHER MATERIAL WILL AFFECT THE FUNCTIONALITY OF YOUR

GENERATOR AND MAY LEAD TO THE TERMINATION OF THE WARRANTY AND CESSATION OF ANY ACCOMPANYING

RESPONSIBILITY ON THE PART OF THE MANUFACTURER

The pellets used must comply with the characteristics described by the

following standards:

EN PLUS class A1, ISO 17225-2 class A1

and

UNI EN 3035 with the following characteristics: water content ≤

12%, ash content ≤ 0.5% and lower caloric value >17 MJ/kg (in the

case of boilers).

The manufacturer always recommended using pellets with a diameter

of 6 mm with its products.

PELLET STORAGE

In order to ensure problem-free combustion pellets must be stored in

a dry place.

Open the tank lid and load the pellets using a scoop.

CHECKS AND PRECAUTIONS FOR FIRST IGNITION

IMPORTANT!

IN ORDER FOR THE GENERATOR TO WORK PROPERLY, THE HYDRAULIC SYSTEM’S PRESSURE MUST BE BETWEEN

0.6 AND 2.5 BAR.

If the pressure detected by the digital pressure switch is below 0.6 or above 2.5 bar, it triggers a boiler alarm.

Bringing the water pressure within the standard values, it is possible to reset the alarm by pressing the button /1 for 3 seconds

(The alarm can be reset only if the fumes motor has stopped and 15 minutes have elapsed from the display of the alarm)

THE PELLET LOADING MOTOR DOES NOT WORK:

Due to the lling of the system, it is normal that there is air inside the circuit.

During the 1st ignition cycle, water movement causes the displacement of air bubbles and their out-ow from the automatic vents out of the

system. This can cause the pressure to drop and activate the minimum pressure switch, which stops the motor that transports the pellets and,

therefore, the heat generator.

Vent out the system, if necessary even multiple times, to remove the air, and reload it if the pressure is too low.

It is not a malfunction, but a normal occurrence due to its lling. After lling, the plumber must always thoroughly vent the system, using the

special vents in the circuit and running the "air breather" function on the machine. (After the rst ignition and with a cold machine, re-activate

the function "air breather" - see chapter "OTHER FUNCTIONS”)

BULB THERMOSTATS  RESET:

Check by pressing the reset buttons (85 - 100°C) located on the back of the appliance, before contacting a technician (see section RESET).

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